Tobacco-pipe.



PATENTED JAN. 28 1908.

M. JBANTET. TOBACCO PIPE.

APPLIGATION FILED 11.13.29, 1907.

M s ...mi .havn ...w1

\/\// T/VESSES 0. CLQ/W @OMM MAURICE JEANTET, OF ST. CLAUDE, FRANCE.

TOBACCO-PIPE.

Specification of Letters Patent.

Patented Jan. 28, 190s.

Application filed March 29. 1907 Serial No. 365.269.

To all whom it may concern.'

Be it known that I, MAURICE JEANTET, civil engineer, citizen of France,residing at St. Claude, Jura, in the Republic of France, have inventednew and useful Im rovements in Tobacco-Pipes, of which the fo lowing isa specification.

This invention relates to improvements in tobacco pipes and consists innovel means for destroying or reducing nicotin and acrid pro erties oftobacco smoke.

vumerous forms of tobacco pipes have been proposed for obviating orreducing the well-known disadvantages of nicotin, but being complicatedor ineffective these forms have been found unsuitable.

By the present invention the im roved tobacco pipe has the property,either y the composition of a suitable part located in it or by thecomposition of its whole, of insuring the destruction of the nicotin andacrid properties of the tobacco smoke, the said pipe being clearlydistinguished from previous ones by certain characteristics whichwill'hereinafter be described.

.'The annexed drawing represents by way of example a form ofconstruction of the improved pipe.

In the interior of the bowl a of the pipe, which is of any usualmaterial such as wood, meerschaum, asbestos, pipe clay or the like, isfixed a cylindrical jacket or lining bof retort-charcoalpreviouslytreated with a catalytic agent by being immersed for instance in asolution of platinum chlorid and then eX- posed to the reducing ame.During the smoking of the pipe a high temperature is produced in thebowl, and this enables the catalytic agent with which the porous jacketis impregnated to produce by contact with the smoke small quantities offormyl which neutralize the nicotin and acrid pro erties of the tobacco.In manufacturing vt e circular jacket j one may also directly mtroducehave the shape of the bow reduced metals into the duce the charcoal.

The special internal linin paste serving to proof the ipe may itselfillistead of being simply cylindrical, or the entire pipe may beconstructed of a substance impregnated `with catalytic agents.

It is obvious that the nature ofthe substance serving as sucpport forthecatalytic agents may be varie and also these agents themselves.Porous substances impre nated with reduced metals are preferab yemployed; for example retort charcoal, coke, graphite, asbestos, andeven stone-ware, if once impregnated with Vcatalytic agents, fulfil the'purpose indicated. With .regard to the catalytic' agent, good resultsare obtained vfrom perchlorid of latinum, and salts of" copper, nickel,palla ium and iridium when reduced.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. A tobacco pipe com rising an ordinary ipe and a lining within t ebowl of the pipe ibrmed of a porous substance previously impregnatedwith a catalytic agent and subjected to a reducing flame, substantiallyas described and for the purpose-set forth.

2. A tobacco pipe comprising an ordinary ipe andj an internal lininwithin the bowl ormed of retort charcoa previously immersed in asolution of chlorid of platinum and subjected to a reducing flame,substantially as described and for the purpose set forth.-

In, testimony whereof I have signed myname to this specification in thepresence of two subscribing witnesses.

MAURICE J EAN TET.

Witnesses GUsTAvE ABRIEN, MARIN VAcnoN.

